| September |
1909 |
Tsuneji Shiraishi developed technique for production of Precipitated Calcium Carbonate by Shiraishi Method. Together with his brother Shozo founded Shiraishi Brothers kaisha, Ltd. in Hiroshima. |
| June |
1914 |
Acquired patent for production of Precipitated Calcium Carbonate by Shiraishi Method. |
| November |
1919 |
Founded Shiraishi Kogyo Kaisha, Ltd. |
| September |
1921 |
Started operations at Kuwana Plant. (September 1976 Shut down) |
|
1927 |
Acquires patents in the USA, Europe and Japan for production of Hakuenka. |
| October |
1932 |
Started operations at Hakuenka Plant. |
| October |
1936 |
Started operations at Tosa Plant. |
| November |
1947 |
Set up the Tokyo Office
(October 2001 Consolidated into Shiraishi Calcium Kaisha, Ltd.) |
| December |
1948 |
Set up the Otaru Office
(October 2002 Consolidated into Shiraishi Calcium Kaisha, Ltd.) |
| July |
1950 |
Built research lab at headquarter. |
| September |
|
Set up the Okayama Office
(October 2002 Consolidated into Hiroshima Office) |
| August |
1955 |
Started operations at Amagasaki Plant. (July 2006 Shut down) |
| April |
1956 |
Set up the Hiroshima Office (October 2007 Consolidated into Shiraishi Calcium Kaisha, Ltd.) |
| August |
1958 |
Set up the Kurume Office
(November 2002 Consolidated into Hiroshima Office) |
| September |
|
Started operations at Fuji Plant. |
| May |
1959 |
Launched Shiraishi Calcium Kaisha, Ltd. as a sales dealer. |
| July |
1961 |
Started operations at Usui Plant. |
| April |
1963 |
Started operations at Tokyo Plant. (November 1976 Shut down.) |
|
1965 |
Tied up with Idemitsu Kosan Co.,Ltd. in the sale of process oil. |
| October |
1966 |
Relocated headquarter to Motohama, Amagasaki. |
| September |
1967 |
Tied up with Thiele Kaolin Company (USA) in the sale of kaolin. |
| October |
1968 |
Set up the Osaka Office
(October 2002 Consolidated into Shiraishi Calcium Kaisha, Ltd.) |
| October |
1972 |
Established Shiraishi Central Laboratories Co.,Ltd. |
| November |
|
Established Sun Land Co.Ltd. |
| June |
1973 |
Established Toyo Fine Chemical Co.,Ltd. |
| April |
1978 |
Set up the Fukuyama Office
(November 2002 Consolidated into Hiroshima Office) |
|
|
Developed "Calshitec" series. |
|
1983 |
Started production of "Cal-Light" porous calcium carbonate at Taiyo Kagaku Kogyo Kaisha,Ltd. |
|
1987 |
Developed "Viscolite" Series. |
| February |
1989 |
Established Keiyo Camaro Co.,Ltd. |
|
1994 |
Started import and sales of high purity quartz
(Unimin Corporation, USA). |
|
1997 |
Started import and sales of silica powder
(S.C.R. Sibelco, Belgium). |
|
2002 |
Developed "Viscoexcel" Series. |
|
2004 |
Developed "Valkofil" Series. |
| March |
|
Tosa Plant certified an ISO9001. |
| March |
2005 |
Hakuenka Plant certified an ISO9001. |
| January |
2007 |
Head Office certified an ISO9001. |
| September |
|
Established Shiraishi-Omya GmbH. |
| December |
|
Started operations at Fujikawa Plant. |
| March |
2008 |
Fuji Plant and Shiraishi Central Laboratories Co.,Ltd. certified an ISO9001. |
| March |
2009 |
Fujikawa Plant certified as a Food Additives Good Manufacturing Practice(GMP). |
| |
|
Taiyo Kagaku Kogyo Kaisha, Ltd. certified an ISO9001. |
| October |
|
Started operations at Pilot Plant for Precipitated Calcium Carbonate. |
| March |
2010 |
Toyo Fine Chemical Kaisha, Ltd. certified an ISO9001. |
